package com.example.siyun.handle;

import com.example.siyun.mapper.loginmapper.UserMapper;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.web.authentication.AuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.security.acl.Permission;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @Auther: 全
 * @Date: 2022/10/10 15:17
 * @Description:登录成功处理器
 */
@Component
@Slf4j
public class CustomAuthenticationSuccessHandler implements AuthenticationSuccessHandler {

    @Autowired
    UserMapper userMapper;

    private ObjectMapper objectMapper = new ObjectMapper();

    @Override
    public void onAuthenticationSuccess(HttpServletRequest httpServletRequest, HttpServletResponse response, Authentication authentication) throws IOException, ServletException {
        // 1. 获取登录名
        String username = authentication.getName();
        // 2. 查询用户的权限信息保存到Redis中
//        UserInfoDO userInfoDO = userMapper.getUserInfoByUserName(username);
        // 3. 将角色和权限信息封装为Security需要的GrantedAuthority集合
//        List<GrantedAuthority> authList = new ArrayList<>();
//        // 4. 循环添加权限值
//        if (userInfoDO==null){
//            // 6. 返回登录成功Json 给前端
//            response.setStatus(HttpStatus.OK.value());
//            response.setCharacterEncoding("UTF-8");
//            response.setContentType("application/json;charset=utf-8");
//            Map<String, Object> result = new HashMap<>();
//            result.put("code", 200);
//            result.put("msg", "登录成功");
//            result.put("username", username);
//            result.put("userInfo", authentication);
//            objectMapper.writeValue(response.getOutputStream(), result);
//        }
//
//        List<Permission> permissionList = userInfoDO.getPermissionList();
//        if (permissionList != null && permissionList.size() > 0) {
//            for (Permission permission : permissionList) {
//                String code = permission.getCode();// 权限值
//                authList.add(new SimpleGrantedAuthority(code));
//            }
//        }
//         4. 循环添加权限值
//        List<Role> roleList = userInfoDO.getRoleList();
//        if (roleList != null && roleList.size() > 0) {
//            for (Role role : roleList) {
//                String code = role.getRoleCode();// 权限值
//                authList.add(new SimpleGrantedAuthority(code));
//            }
//        }
//         5. 存入REDIS ,用户名为Key ,权限值列表为值
//        RedisUtil.setList(username, authList);
//        log.info("=============" + username + "权限已存入到Redis中");
//
//         6. 返回登录成功Json 给前端
//        response.setStatus(HttpStatus.OK.value());
//        response.setCharacterEncoding("UTF-8");
//        response.setContentType("application/json;charset=utf-8");
//        Map<String, Object> result = new HashMap<>();
//        result.put("code", 200);
//        result.put("msg", "登录成功");
//        result.put("username", username);
//        result.put("userInfo", authentication);
//        objectMapper.writeValue(response.getOutputStream(), result);

        response.sendRedirect("/tologin");
    }
}
